External field dependence of the correlation lengths in the three-dimensional O(4) model

Engels J, Fromme L, Seniuch M (2004)
Nucl. Phys. Proc. Suppl. 129: 783-785.

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We investigate numerically the transverse and longitudinal correlation lengths of the three-dimensional 0(4) model as a function of the external field H. In the low-temperature phase we verify explicitly the H-1/2- dependence of the transverse correlation length, which is expected due to the Goldstone modes of the model. On the critical line we find the universal amplitude ratio epsilon(T)(c)/epsilon(L)(c) = 1.99(1). From our data we derive the universal scaling ftinction lot- the transverse correlation length. The H-dependencies of the correlation lengths in the high temperature phase are discussed and shown to be in accord with the scaling functions.
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Engels J, Fromme L, Seniuch M. External field dependence of the correlation lengths in the three-dimensional O(4) model. Nucl. Phys. Proc. Suppl. 2004;129:783-785.
Engels, J., Fromme, L., & Seniuch, M. (2004). External field dependence of the correlation lengths in the three-dimensional O(4) model. Nucl. Phys. Proc. Suppl., 129, 783-785. doi:10.1016/j.nuclphysbps.2003.12.289
Engels, J., Fromme, L., and Seniuch, M. (2004). External field dependence of the correlation lengths in the three-dimensional O(4) model. Nucl. Phys. Proc. Suppl. 129, 783-785.
Engels, J., Fromme, L., & Seniuch, M., 2004. External field dependence of the correlation lengths in the three-dimensional O(4) model. Nucl. Phys. Proc. Suppl., 129, p 783-785.
J. Engels, L. Fromme, and M. Seniuch, “External field dependence of the correlation lengths in the three-dimensional O(4) model”, Nucl. Phys. Proc. Suppl., vol. 129, 2004, pp. 783-785.
Engels, J., Fromme, L., Seniuch, M.: External field dependence of the correlation lengths in the three-dimensional O(4) model. Nucl. Phys. Proc. Suppl. 129, 783-785 (2004).
Engels, Jürgen, Fromme, L, and Seniuch, M. “External field dependence of the correlation lengths in the three-dimensional O(4) model”. Nucl. Phys. Proc. Suppl. 129 (2004): 783-785.
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